Electric heating steam generator

Abstract

The utility model relates to the technical field of heat exchange equipment, and discloses an electric heating steam generator which comprises a machine shell, an inner container assembly, a softened water tank, a water pump, an isolation plate and a control assembly, and the inner container assembly, the softened water tank, the water pump, the isolation plate and the control assembly are arranged in the machine shell. The control assembly is arranged in the electric control area, the inner container assembly, the softened water tank and the water pump are arranged in the heating area at intervals, and the inner container assembly is far away from the isolation plate. The machine shell is divided into the independent heating area and the independent electric control area through the isolation plate, the electric control area is far away from the inner container assembly, so that heat of the inner container assembly cannot be transmitted into the electric control area or slightly influences the electric control area in the working process, the influence of external heat on the control assembly is reduced, and the working efficiency of the control assembly is improved; burnout caused by too high heat is avoided, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange equipment technology, specifically to an electrically heated steam generator. Background Technology

[0002] Electric steam generators are characterized by being pollution-free, noiseless, having a small footprint, being easy to install and use, and boasting a thermal efficiency of over 98%, making them a green and environmentally friendly product. With an effective water volume of less than 30L, the steam generator is an inspection-exempt boiler and requires no professional boiler operator.

[0003] Existing technology, Chinese utility model patent application number 202120691286.8, discloses an electric steam generator, including a water tank, a water liner, a water pump disposed between the water tank and the water liner to pump water from the water tank into the water liner, and a heating component for heating the water in the water liner; the water liner includes a liner body, a steam outlet disposed at the top of the liner body, and a glass level gauge installed on the side wall of the liner body. In this utility model, the glass level gauge and the water liner body are movably connected via a joint, thus facilitating the installation of the glass level gauge; compared to the prior art, the separate electrical box is eliminated, and the control components are integrated into the front insulation panel. Furthermore, the front insulation panel and the side insulation panels together provide protection for the control components, saving costs.

[0004] Although the separate electrical box has been eliminated in this solution, the control components themselves generate heat, and the heating components are also integrated into the front insulation panel. When working, if the temperature of the front insulation panel is too high, it will cause the control components to overheat, which may burn out the control components and damage the equipment. Utility Model Content

[0005] The purpose of this invention is to provide an electrically heated steam generator to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides an electric heating steam generator, including a housing and an inner tank assembly, a soft water tank, a water pump, an isolation plate, and a control component disposed inside the housing. The water pump is used to pump water from the soft water tank into the inner tank assembly. The effective water volume of the inner tank assembly is less than 30L. The isolation plate divides the housing into a heating zone and an electrical control zone arranged on the left and right sides. The control component is disposed in the electrical control zone. The inner tank assembly, the soft water tank, and the water pump are spaced apart in the heating zone, and the inner tank assembly is away from the isolation plate.

[0007] Preferably, the side of the housing is provided with an exhaust fan and louvers that communicate with the electrical control area.

[0008] Preferably, the inner tank assembly includes an inner tank, a support frame disposed at the bottom of the inner tank, a water inlet / drainage pipe fitting, a liquid level detector disposed on the outer side wall of the inner tank, a heating pipe disposed on the inner tank, and a steam valve and a safety valve disposed at the top of the inner tank. The soft water tank, the water pump, and the water inlet / drainage pipe fitting are connected in sequence through a water inlet pipe.

[0009] Preferably, the inner liner assembly further includes a pressure control component connected to the top of the inner liner. The pressure control component includes a pressure controller, a pressure transmitter, and a pressure gauge. The pressure gauge is disposed on the side wall of the housing, and the pressure controller and pressure transmitter are disposed inside the housing.

[0010] Preferably, the inner liner assembly further includes a temperature detector disposed within the inner liner.

[0011] Preferably, the inner liner includes an inner liner body, a top plate, a bottom plate, a partition, and a support tube. The top plate and the bottom plate are respectively disposed at the top and bottom of the inner liner body. The partition is disposed in the middle of the inner cavity of the inner liner body. The top plate and the bottom plate are supported by the support tube. The top plate is provided with a pressure controller interface, a pressure transmitter interface, a pressure gauge interface, a steam pipe seat, and a safety valve pipe seat. The pressure controller interface, the pressure transmitter interface, and the pressure gauge interface are respectively connected to the pressure controller, the pressure transmitter, and the pressure gauge. The steam pipe seat and the safety valve pipe seat are respectively connected to the steam valve and the safety valve. The inner liner body is also provided with a thermocouple interface, which is connected to the temperature detector.

[0012] Preferably, the water inlet / sewage pipe fitting includes a water inlet / sewage pipe disposed at the bottom of the inner tank, a docking flange and a sewage flange respectively disposed at both ends of the water inlet / sewage pipe, and a water inlet disposed on the water inlet / sewage pipe. The water inlet is close to the sewage flange, the docking flange is connected to the inner tank, the sewage flange is connected to an external sewage pipe, and the water inlet is connected to the water inlet pipe.

[0013] Preferably, two check valves are provided at the connection between the water inlet pipe and the water inlet.

[0014] Preferably, the liquid level detector includes two probe tube connectors spaced apart on the side of the inner liner, a probe tube body disposed at one end of the two probe tube connectors away from the inner liner, a fixed probe plate and a probe tube lower sealing plate disposed at the top and bottom of the probe tube body, and two liquid level gauge interfaces spaced apart on the outer wall of the probe tube body.

[0015] Preferably, the control components include a circuit board disposed in the electrical control area, a touch screen disposed on the outside of the housing, and an emergency stop switch.

[0016] The beneficial effects of this utility model are as follows: the housing is divided into an independent heating zone and an electrical control zone by the isolation plate, and the electrical control zone is far away from the inner liner assembly, so that the heat of the inner liner assembly cannot be transferred to the electrical control zone or has very little impact on the electrical control zone during operation, thereby reducing the impact of external heat on the control assembly, improving the working efficiency of the control assembly, avoiding the situation of burning out due to excessive heat, and extending the working life.

[0017] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 A front view of an electrically heated steam generator according to one embodiment of the present invention is shown;

[0020] Figure 2 A left view of an electrically heated steam generator according to one embodiment of the present invention is shown;

[0021] Figure 3 A top view of an electrically heated steam generator according to one embodiment of the present invention is shown;

[0022] Figure 4 A schematic diagram of the inner tank assembly structure of an electrically heated steam generator according to one embodiment of the present invention is shown.

[0023] Figure 5 A top view of the inner tank assembly of an electrically heated steam generator according to one embodiment of the present invention is shown;

[0024] Figure 6 This utility model illustrates Figure 5 View from AA direction;

[0025] Figure 7 A schematic diagram of the water inlet / drainage pipe structure of an electrically heated steam generator according to one embodiment of the present invention is shown. Detailed Implementation

[0026] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0027] Please refer to Figures 1-7This embodiment discloses an electric heating steam generator, including a housing 1 and an inner tank assembly 2, a soft water tank 3, a water pump 4, an isolation plate 5, and a control component 6 disposed inside the housing 1. The water pump 4 is used to pump water from the soft water tank 3 into the inner tank assembly 2. The effective water volume of the inner tank assembly 2 is less than 30L. The isolation plate 5 divides the housing 1 into a heating zone and an electric control zone arranged on the left and right. The control component 6 is disposed in the electric control zone. The inner tank assembly 2, the soft water tank 3, and the water pump 4 are arranged at intervals in the heating zone. The inner tank assembly 2 is away from the isolation plate 5.

[0028] In this embodiment, the housing 1 is divided into two independent areas by the partition plate 5, namely the heating area and the electrical control area. The heating area is used to install the heating equipment for producing steam, while the electrical control area is used to install the control component 6 for controlling the heating equipment. The inner tank component 2 is set away from the control component 6 so that the heat generated when it is heated will not affect the control component 6 or will have a very small impact. This avoids the influence of external heat on the control component 6, ensures the working efficiency of the control component 6, and thus extends its working life.

[0029] Please refer to Figure 1 The side of the housing 1 is equipped with an exhaust fan 11 and louvers 12 that communicate with the electrical control area. The exhaust fan 11 and louvers 12 work together to exchange heat with the air in the electrical control area, improving its heat exchange efficiency and further ensuring the working efficiency of the control components 6. In addition, for the convenience of moving the equipment, casters 13 are provided at the four corners of the bottom of the housing 1.

[0030] Please refer to Figures 3-5 The inner tank assembly 2 includes an inner tank 21, a support frame 22 disposed at the bottom of the inner tank 21, a water inlet / drainage pipe fitting 23, a liquid level detector 24 disposed on the outer wall of the inner tank 21, a heating pipe 25 disposed on the inner tank 21, and a steam valve 26 and a safety valve 27 disposed on the top of the inner tank 21. The soft water tank 3, the water pump 4, and the water inlet / drainage pipe fitting 23 are connected in sequence through the water inlet pipe 201. In this embodiment, four heating pipes 25 are provided, and the four heating pipes 25 can form various combinations to realize multi-level power adjustment.

[0031] Specifically, the inner liner assembly 2 also includes a pressure control component 28 connected to the top of the inner liner 21. The pressure control component 28 includes a pressure controller 281, a pressure transmitter 282, and a pressure gauge 283. The pressure gauge 283 is disposed on the side wall of the housing 1, and the pressure controller 281 and the pressure transmitter 282 are disposed inside the housing 1.

[0032] The inner liner assembly 2 also includes a temperature detector 29 disposed inside the inner liner 21. The temperature detector is a steam temperature-controlled thermocouple.

[0033] Please refer to Figure 4 and Figure 5The inner liner 21 includes an inner liner body 211, a top plate 212, a bottom plate 213, a partition 214, and a support tube 215. The top plate 212 and the bottom plate 213 are respectively located at the top and bottom of the inner liner body 211. The partition 214 is located in the middle of the inner cavity of the inner liner body 211. The top plate 212 and the bottom plate 213 are supported by the support tube 215. The top plate 212 is provided with a pressure controller interface 202, a pressure transmitter interface 203, and a pressure gauge interface. 204, steam pipe seat 205, safety valve seat 206, pressure controller interface 202, pressure transmitter interface 203 and pressure gauge interface 204 are respectively connected to pressure controller 281, pressure transmitter 282 and pressure gauge 283, steam pipe seat 205 and safety valve seat 206 are respectively connected to steam valve 26 and safety valve 27, and thermocouple interface 207 is also provided on inner cylinder 211, thermocouple interface 207 is connected to temperature detector 29.

[0034] In this embodiment, an audible and visual alarm 14 is also installed on the top of the casing 1, and a solenoid valve 31 is installed at the inlet of the soft water tank 3. Softened water enters the soft water tank 3 through the solenoid valve 31, and is then pressurized by the water pump 4 and enters the inner tank 21 through the inlet / outlet pipe 23. After passing through the heating pipe 25, steam is generated, and the steam can be discharged from the steam valve 26 on the top. The pressure gauge 283 monitors and displays the real-time steam pressure. The load of the steam generator is controlled by the safety valve 27, the pressure controller 281 (mechanical control), and the pressure transmitter 282 (electrical signal control), realizing fully automatic adjustment of the steam generator load. Specifically, when steam overpressure occurs due to abnormal conditions such as external steam supply failure, the steam generator is immediately shut down by the pressure controller 281 (mechanical control) and pressure transmitter 282 (electrical signal control). Simultaneously, the audible and visual alarm 14 sounds an alarm, and the safety valve 27 opens to release steam and relieve pressure during the control and protection actions. A steam temperature control thermocouple is installed to monitor the steam temperature in real time and output a real-time steam temperature signal. Overheating of the steam generator immediately shuts down the power supply. The multi-layered control and protection design provides a high level of automation and comprehensive safety protection devices, making the boiler easy to operate and allowing for real-time monitoring of the steam generator's operating status, ensuring safe and reliable operation. Control component 6 adopts a professional Siemens fully automatic control system, with multiple detection and protection mechanisms including the pressure controller 281, pressure transmitter 282, and temperature control thermocouple, ensuring safety and reliability.

[0035] Please refer to Figure 7The water inlet / sewage drain fitting 23 includes a water inlet / sewage drain pipe 231 located at the bottom of the inner tank 21, a connecting flange 232 and a drain flange 233 respectively located at both ends of the water inlet / sewage drain pipe 231, and a water inlet 234 located on the water inlet / sewage drain pipe 231. The water inlet 234 is close to the drain flange 234. The connecting flange 232 connects to the inner tank 21, and the drain flange 234 connects to an external sewage drain pipe. The water inlet 234 is connected to the water inlet pipe 201. This embodiment integrates sewage discharge and water inlet into one pipe, requiring only one hole in the inner tank 21, eliminating the need for separate water inlet and sewage outlet holes, thus greatly improving production efficiency. Please refer to... Figure 3 Two check valves 208 are installed at the connection between the water inlet pipe 201 and the water inlet 234. The two check valves 208 provide dual protection. When one of them fails, the other will ensure normal operation.

[0036] Please refer to Figure 6 The liquid level detector 24 includes two probe tube connectors 241 spaced apart on the side of the inner tank 21, a probe tube body 242 located at the end of the two probe tube connectors 241 away from the inner tank 21, a fixed probe plate 243 and a probe tube lower sealing plate 244 located at the top and bottom of the probe tube body 242, and two liquid level gauge interfaces 245 spaced apart on the outer wall of the probe tube body 242. The fixed probe plate 243 is used to connect a three-stage water level probe, and the liquid level gauge interface 245 is used to connect a visible liquid level glass tube. The three-stage water level probe monitors the water level in real time. When the water level is low, the water pump 4 is automatically started; when the water level is high, the water pump 4 is automatically stopped. When the water level drops below the low water level line due to abnormal conditions such as a malfunction of the water pump 4, an audible and visual alarm will be issued first. When the water level in the inner tank 21 is at the minimum safe water level line, the power will be cut off and the steam generator will be stopped immediately, and an audible and visual alarm will be issued at the same time. When the water level in the inner tank 21 is high, the protection action is the same as above. When the extreme low water level is reached, the steam generator will be stopped and locked immediately, completely eliminating water shortage accidents caused by false water levels in the steam generator. The automatic control level is high, and the safety protection devices are complete, making the steam generator easy to operate, safe and reliable in operation, and able to achieve fully automatic water supply and operation.

[0037] Please refer to Figure 2 The control component 6 includes a circuit board 61 located in the electrical control area, a touch screen 62 located on the outside of the housing 1, and an emergency stop switch 63.

[0038] In summary, this embodiment divides the casing 1 into an independent heating zone and an electrical control zone by means of the isolation plate 5. The electrical control zone is far away from the inner liner assembly 2, so that the heat of the inner liner assembly 2 cannot be transferred to the electrical control zone or has very little impact on the electrical control zone during operation. This reduces the impact of external heat on the control assembly 6, improves the working efficiency of the control assembly 6, avoids the situation of burning out due to excessive heat, and extends the working life.

[0039] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention. It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not further describe the various possible combinations.

[0040] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. An electrically heated steam generator, characterized in that, The device includes a housing and an inner tank assembly, a soft water tank, a water pump, an isolation plate, and a control component disposed inside the housing. The water pump is used to pump water from the soft water tank into the inner tank assembly. The effective water volume of the inner tank assembly is less than 30L. The isolation plate divides the housing into a heating zone and an electrical control zone arranged on the left and right sides. The control component is disposed in the electrical control zone. The inner tank assembly, the soft water tank, and the water pump are spaced apart in the heating zone. The inner tank assembly is away from the isolation plate.

2. The electrically heated steam generator according to claim 1, characterized in that, The side of the casing is provided with an exhaust fan and louvers that are connected to the electrical control area.

3. The electrically heated steam generator according to claim 1, characterized in that, The inner tank assembly includes an inner tank, a support frame disposed at the bottom of the inner tank, a water inlet / sewage drain pipe, a liquid level detector disposed on the outer side wall of the inner tank, a heating pipe disposed on the inner tank, and a steam valve and a safety valve disposed at the top of the inner tank. The soft water tank, the water pump, and the water inlet / sewage drain pipe are connected in sequence through a water inlet pipe.

4. The electrically heated steam generator according to claim 2, characterized in that, The inner liner assembly also includes a pressure control component connected to the top of the inner liner. The pressure control component includes a pressure controller, a pressure transmitter, and a pressure gauge. The pressure gauge is disposed on the side wall of the housing, and the pressure controller and pressure transmitter are disposed inside the housing.

5. The electrically heated steam generator according to claim 4, characterized in that, The inner liner assembly also includes a temperature detector disposed inside the inner liner.

6. The electrically heated steam generator according to claim 5, characterized in that, The inner liner includes an inner liner body, a top plate, a bottom plate, a partition, and a support tube. The top plate and the bottom plate are respectively located at the top and bottom of the inner liner body. The partition is located in the middle of the inner liner body. The top plate and the bottom plate are supported by the support tube. The top plate is provided with a pressure controller interface, a pressure transmitter interface, a pressure gauge interface, a steam pipe seat, and a safety valve seat. The pressure controller interface, the pressure transmitter interface, and the pressure gauge interface are respectively connected to the pressure controller, the pressure transmitter, and the pressure gauge. The steam pipe seat and the safety valve seat are respectively connected to the steam valve and the safety valve. The inner liner body is also provided with a thermocouple interface, which is connected to the temperature detector.

7. The electrically heated steam generator according to claim 3, characterized in that, The water inlet / sewage pipe fitting includes a water inlet / sewage pipe disposed at the bottom of the inner tank, a docking flange and a sewage flange respectively disposed at both ends of the water inlet / sewage pipe, and a water inlet disposed on the water inlet / sewage pipe. The water inlet is close to the sewage flange, the docking flange is connected to the inner tank, the sewage flange is connected to an external sewage pipe, and the water inlet is connected to the water inlet pipe.

8. The electrically heated steam generator according to claim 7, characterized in that, Two check valves are installed at the connection between the water inlet pipe and the water inlet.

9. The electrically heated steam generator according to claim 3, characterized in that, The liquid level detector includes two probe tube connectors spaced apart on the side of the inner liner, a probe tube body located at one end of the two probe tube connectors away from the inner liner, a fixed probe plate and a probe tube lower sealing plate located at the top and bottom of the probe tube body, and two liquid level gauge interfaces spaced apart on the outer wall of the probe tube body.

10. The electrically heated steam generator according to claim 1, characterized in that, The control components include a circuit board disposed in the electrical control area, a touch screen disposed on the outside of the housing, and an emergency stop switch.

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